Posted 5/24/2025 17:42 (#11236872 - in reply to #11236794) Subject: RE: How to get my Allison MD3560 to go into 6th gear
Wisconsin
You can try the mode button, usually that's an eco mode or performance mode, but it can be programmed to many functions. Otherwise you'll need a re programmed TCU, allison will only do it if the OEM approves it, but there are other options. Search "Allison 6th gear unlock"
How to get my Allison MD3560 to go into 6th gear
